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Mathematics, 15.07.2019 03:00 davisnaziyahovz5sk

Arestaurant ordered $900 worth of plates, some of which cost $5 each and some of which cost $10 each. if twice as many $10 plates as $5 plates were ordered, what was the total number of plates ordered?

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Arestaurant ordered $900 worth of plates, some of which cost $5 each and some of which cost $10 each...
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